Merge branch 'dev' into dev_importBundledPlugins

dist/reveal.min.js

js/controllers/autoanimate.js

js/controllers/fragments.js

js/controllers/overview.js

js/controllers/plugins.js

js/controllers/slidecontent.js

js/reveal.js

js/utils/device.js

js/utils/util.js

plugin/markdown/example.html

test/test.html

test/test.js